Adding Table rows Dynamically in Android

Question

I am trying to create a layout where I need to add table rows dynamically  Below is the table layout xml   lt TableLayout xmlns android  http   schemas android com apk res android      android layout width  match parent      android layout height  match parent      android id    id displayLinear      android background   color background df      android orientation  vertical   gt             lt TableRow             android layout width  wrap content              android layout height  wrap content              android id    id display row              android layout marginTop  280dip   gt    lt  TableLayout gt    The activity file where rows are being added dynamically is  public void init        menuDB   new MenuDBAdapter this       ll    TableLayout  findViewById R id displayLinear        TableRow row  TableRow findViewById R id display row       for  int i   0  i  lt 2  i               checkBox   new CheckBox this           tv   new TextView this           addBtn   new ImageButton this           addBtn setImageResource R drawable add           minusBtn   new ImageButton this           minusBtn setImageResource R drawable minus           qty   new TextView this           checkBox setText  hello            qty setText  10            row addView checkBox           row addView minusBtn           row addView qty           row addView addBtn           ll addView row i              But when I run this  I am getting below error  08-13 16 27 46 437  E AndroidRuntime 23568   java lang RuntimeException  Unable to start activity ComponentInfo com example roms com example roms DisplayActivity   java lang IllegalStateException  The specified child already has a parent  You must call removeView   on the child s parent first    I understand that this is due to command ll addView row i   but when I remove this its adding all stuff in a single row rather tan creating a new row for next item  I tried with giving index too as row addView addBtn i  but still its not populating correctly  Please advise  Thanks

User · Answer

change code of init like following   public void init        menuDB   new MenuDBAdapter this       ll    TableLayout  findViewById R id displayLinear       ll removeAllViews        for  int i   0  i  lt 2  i              TableRow row  TableRow findViewById R id display row           checkBox   new CheckBox this           tv   new TextView this           addBtn   new ImageButton this           addBtn setImageResource R drawable add           minusBtn   new ImageButton this           minusBtn setImageResource R drawable minus           qty   new TextView this           checkBox setText  hello            qty setText  10            row addView checkBox           row addView minusBtn           row addView qty           row addView addBtn           ll addView row i

User · Answer

You shouldn t be using an item defined in the Layout XML in order to create more instances of it  You should either create it in a separate XML and inflate it or create the TableRow programmaticaly  If creating them programmaticaly  should be something like this       public void init        TableLayout ll    TableLayout  findViewById R id displayLinear         for  int i   0  i  lt 2  i               TableRow row  new TableRow this           TableRow LayoutParams lp   new TableRow LayoutParams TableRow LayoutParams WRAP CONTENT           row setLayoutParams lp           checkBox   new CheckBox this           tv   new TextView this           addBtn   new ImageButton this           addBtn setImageResource R drawable add           minusBtn   new ImageButton this           minusBtn setImageResource R drawable minus           qty   new TextView this           checkBox setText  hello            qty setText  10            row addView checkBox           row addView minusBtn           row addView qty           row addView addBtn           ll addView row i

User · Answer

public Boolean addArtist String artistName            SQLiteDatabase db  getWritableDatabase             ContentValues data new ContentValues            data put ArtistMaster ArtistDetails COLUMN ARTIST NAME artistName           long id   db insert ArtistMaster ArtistDetails TABLE NAME null data            if id gt 0               return true           else              return false

User · Answer

Activity      lt HorizontalScrollView         android layout width  match parent          android layout height  match parent  gt            lt TableLayout             android id    id mytable              android layout width  match parent              android layout height  match parent  gt            lt  TableLayout gt       lt  HorizontalScrollView gt    Your Class  protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity testtable       table    TableLayout findViewById R id mytable       showTableLayout        public  void showTableLayout        Date date   new Date        int rows   80      int colums    10      table setStretchAllColumns true       table bringToFront         for int i   0  i  lt  rows  i              TableRow tr    new TableRow this           for int j   0  j  lt  colums  j                          TextView txtGeneric   new TextView this               txtGeneric setTextSize 18               txtGeneric setText  dateFormat format date      t t t t                 tr addView txtGeneric                 txtGeneric setHeight 30   txtGeneric setWidth 50     txtGeneric setTextColor Color BLUE                       table addView tr

User · Answer

You can use an inflater with TableRow  for  int i   0  i  lt  months  i               View view   getLayoutInflater    inflate  R layout list month data  null  false                TextView textView   view findViewById  R id title            textView setText   quot Text quot                 tableLayout addView  view           Layout   lt TableRow     xmlns android  quot http   schemas android com apk res android quot      android layout width  quot match parent quot      android layout height  quot wrap content quot      android orientation  quot vertical quot      android layout centerInParent  quot true quot      android gravity  quot center horizontal quot      android paddingTop  quot 15dp quot      android paddingRight  quot 15dp quot      android paddingLeft  quot 15dp quot      android paddingBottom  quot 10dp quot       gt            lt TextView         android id  quot   id title quot          android layout width  quot wrap content quot          android layout height  quot wrap content quot          android textSize  quot 18sp quot          android gravity  quot center quot            gt        lt  TableRow gt

User · Answer

You also can  as Fredigato said  declare a RelativeLayout in a separate Layout file  Then instantiate it using   for int i   0  i  lt  6  i      LayoutInflater inflater    LayoutInflater getApplicationContext   getSystemService                  Context LAYOUT INFLATER SERVICE   RelativeLayout row    RelativeLayout  inflater inflate R layout table view null           quizesTableLayout addView row i       In this approach you can easily design one custom row using XML and reuse it   Now  to be able to change the children views in the instantiated RelativeLayout  You can call row childAt index    So lets say you have a TextView in the RelativeLayout  you can use   TextView tv    TextView  row childAt 0   tv setText  Text

User · Answer

Create an init   function and  point the table layout  Then create the needed rows and columns      public void init                 TableLayout stk    TableLayout  findViewById R id table main               TableRow tbrow0   new TableRow this               TextView tv0   new TextView this               tv0 setText   Sl No                 tv0 setTextColor Color WHITE               tbrow0 addView tv0               TextView tv1   new TextView this               tv1 setText   Product                 tv1 setTextColor Color WHITE               tbrow0 addView tv1               TextView tv2   new TextView this               tv2 setText   Unit Price                 tv2 setTextColor Color WHITE               tbrow0 addView tv2               TextView tv3   new TextView this               tv3 setText   Stock Remaining                 tv3 setTextColor Color WHITE               tbrow0 addView tv3               stk addView tbrow0               for  int i   0  i  lt  25  i                      TableRow tbrow   new TableRow this                   TextView t1v   new TextView this                   t1v setText      i                   t1v setTextColor Color WHITE                   t1v setGravity Gravity CENTER                   tbrow addView t1v                   TextView t2v   new TextView this                   t2v setText  Product     i                   t2v setTextColor Color WHITE                   t2v setGravity Gravity CENTER                   tbrow addView t2v                   TextView t3v   new TextView this                   t3v setText  Rs     i                   t3v setTextColor Color WHITE                   t3v setGravity Gravity CENTER                   tbrow addView t3v                   TextView t4v   new TextView this                   t4v setText      i   15   32   10                   t4v setTextColor Color WHITE                   t4v setGravity Gravity CENTER                   tbrow addView t4v                   stk addView tbrow                              Call init function in your onCreate method    Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           requestWindowFeature Window FEATURE NO TITLE           setContentView R layout activity main            init            Layout file like     lt ScrollView         android id    id scrollView1          android layout width  fill parent          android layout height  wrap content          android background   3d455b          android layout alignParentLeft  true   gt            lt HorizontalScrollView             android id    id hscrll1              android layout width  fill parent              android layout height  wrap content   gt                lt RelativeLayout                 android id    id RelativeLayout1                  android layout width  fill parent                  android layout gravity  center                  android layout height  fill parent                  android orientation  vertical   gt                    lt TableLayout                     android id    id table main                      android layout width  wrap content                      android layout height  wrap content                      android layout centerHorizontal  true   gt                   lt  TableLayout gt               lt  RelativeLayout gt           lt  HorizontalScrollView gt       lt  ScrollView gt    Will look like

[android] Adding Table rows Dynamically in Android

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